30921120

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{197}}^1$

素因数の和:327

約数の個数: 144

約数和(自身を含む): 107026920

約数和(自身を除く): 76105800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 109, 120, 144, 160, 180, 197, 218, 240, 288, 327, 360, 394, 436, 480, 545, 591, 654, 720, 788, 872, 981, 985, 1090, 1182, 1308, 1440, 1576, 1635, 1744, 1773, 1962, 1970, 2180, 2364, 2616, 2955, 3152, 3270, 3488, 3546, 3924, 3940, 4360, 4728, 4905, 5232, 5910, 6304, 6540, 7092, 7848, 7880, 8720, 8865, 9456, 9810, 10464, 11820, 13080, 14184, 15696, 15760, 17440, 17730, 18912, 19620, 21473, 23640, 26160, 28368, 31392, 31520, 35460, 39240, 42946, 47280, 52320, 56736, 64419, 70920, 78480, 85892, 94560, 107365, 128838, 141840, 156960, 171784, 193257, 214730, 257676, 283680, 322095, 343568, 386514, 429460, 515352, 644190, 687136, 773028, 858920, 966285, 1030704, 1288380, 1546056, 1717840, 1932570, 2061408, 2576760, 3092112, 3435680, 3865140, 5153520, 6184224, 7730280, 10307040, 15460560, 30921120]

約数ペア:

[(1, 30921120), (2, 15460560), (3, 10307040), (4, 7730280), (5, 6184224), (6, 5153520), (8, 3865140), (9, 3435680), (10, 3092112), (12, 2576760), (15, 2061408), (16, 1932570), (18, 1717840), (20, 1546056), (24, 1288380), (30, 1030704), (32, 966285), (36, 858920), (40, 773028), (45, 687136), (48, 644190), (60, 515352), (72, 429460), (80, 386514), (90, 343568), (96, 322095), (109, 283680), (120, 257676), (144, 214730), (160, 193257), (180, 171784), (197, 156960), (218, 141840), (240, 128838), (288, 107365), (327, 94560), (360, 85892), (394, 78480), (436, 70920), (480, 64419), (545, 56736), (591, 52320), (654, 47280), (720, 42946), (788, 39240), (872, 35460), (981, 31520), (985, 31392), (1090, 28368), (1182, 26160), (1308, 23640), (1440, 21473), (1576, 19620), (1635, 18912), (1744, 17730), (1773, 17440), (1962, 15760), (1970, 15696), (2180, 14184), (2364, 13080), (2616, 11820), (2955, 10464), (3152, 9810), (3270, 9456), (3488, 8865), (3546, 8720), (3924, 7880), (3940, 7848), (4360, 7092), (4728, 6540), (4905, 6304), (5232, 5910)]